Sometimes it happens. You've read the Community Guidelines, you think you understand the rules, and you upload videos that you believe comply with them. Then one day you receive a message from us informing you that one of your videos has "been disabled for violation of the YouTube Community Guidelines."

"Huh?" you ask yourself. "What's the connection between the Community Guidelines and my video?" Starting today, we'll help answer that question by including tips from the Community Guidelines in the messages we send you if we take down one of your videos.

For example, you post a video that features nudity. When it gets flagged by the YouTube community and removed by our staff, you'll receive this reminder: "Most nudity is not allowed on YouTube, particularly if it is in a sexual context. Videos that are intended to be sexually provocative are also generally not acceptable for YouTube. There are exceptions for some educational, documentary and scientific content, but only if that is the sole purpose of the video and it is not sexually gratuitous."

We think of this as "just-in-time" learning to help you make and upload videos that stay up on the site for the world to see.